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摘要
申请公布号
JPH0459973(B2)
申请公布日期
1992.09.24
申请号
JP19860162706
申请日期
1986.07.10
申请人
SUMITOMO METAL IND
发明人
SAKAMOTO HIROKI;NAKADE HIROSHI;MATSUI TAKASHI;YOSHIMURA KYONOBU
分类号
B21D7/16
主分类号
B21D7/16
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